Brunton TruArc 15 vs Garmin inReach Messenger

Weight and specs compared for 2026 — and which one to choose.

Brunton TruArc 15 is the lighter option — 75 g lighter than the Garmin inReach Messenger (65% less weight). If grams matter to you, that is the one to beat.

Spec	Brunton TruArc 15	Garmin inReach Messenger
Weight	40 g · 0.040 kg · 0.09 lb	115 g · 0.115 kg · 0.25 lb
Brand	Brunton	Garmin
Category	Navigation	Navigation

Brunton TruArc 15

40 g

Global needle compass. Works anywhere on Earth.

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Garmin inReach Messenger

115 g

Affordable satellite messenger with SOS and tracking.

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Brunton TruArc 15 vs Garmin inReach Messenger: which should you buy?

If saving weight is your priority, the Brunton TruArc 15 wins — at 40 g it is 75 g (65%) lighter than the Garmin inReach Messenger (115 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.

See where both rank against everything else in this category on the lightest navigation page, or browse the full gear weight database.

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